Automatic valve.



No. 373,324.} PATENTED DEC. 10, 1907.

A. MIGHAELS.

AUTOMATIC VALVE.

- APPLICATION FILED MAR. 4. 1907.

2 SHEETSSHEBT 1.

No.s7s,s24; PATENTED DEO.10, 1901 A. MIGHAE-LS.

AUTOMATIC VALVE.

APPLIOATION FILED mm. 4. 1001.

2 sums-sum a.

.lnumeral 4 indicates a casing, the inner chamrarrn A'ucusr MICHAELS, or MILWAUKEE, WISCONSIN.

' aorornarrc vALvn.

Specification of Letters Patent.

Patented nee. 10,1907.

Application filed March 4. 1907- Serial No. 360.627

To all whom it may concern:

Be it known thatl, AUGUsT MIonAnLs,

residing in Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Automatic Valves, of which the following is a description, reference being had to-the accompanying drawings, which are a part of this specification.

My invention has relation to improvements in automatic valves.

The object of the invention is to provide an improved form of valve for reducing pressures and for governing and controlling pressures, the construction involving a valve extremely sensitive to the slightest variation in pressure, and thereby adapted on the slightest variation to act in.a manner to reduce the pressure and to govern and control the same.

With. the above primary object, and other.

incidental obiects, in view, the invention consists of the devices and parts, or their equivalents, as hereinat'ter set forth.

In the accompanying drawings, Figure 1 is a vertical, sectional view of the invention;

Fig. 2 is a plan view 3 and Fig.3 is a vertical, sectional view of a modified form of construction.

Referring to Sheet 1 of the drawings, the

bor thereof being subdividedflry a horizontal partition 5 into upper and lower compartments 6 and 7, respectively. 1 The partition .is provided with an, opening 8, and the bordering edge of this opening is beveled to form a tapered valve seat Leading to the upper compartment 6 a steam inlet pipe 10, and leading from the lower compartment 7 is aste-am outlet pipe 11.. Within the upper compartment is adapted to operate a valve, preferably of the specific form shown int-he drawings, 1'. (2., consisting of the lower tapered portion 12 adapted to accurately fit the tapered valve seat 9, and

, an upwardly extending reduced portion 13.

' 12 of thevalve is a guide 16.

also provided with a' vertical opening 17 The upper end of this reduced portion is providedwitha chamber 14 which is in communicationv with the upper compartment 6 by means of ports or'open'ings 15. Depending from the lower end of the tapered portion The valve is which extends through the lower end of said valve and upwardly to the chamber '14. Fitting in thisopening rigidlyand extending through ment'7 of the casing.

provided with a suitable packing 21. The

a slight distance above'the upper end of the opening and into the chamber 1-4 is a vertical tube 18. This tube below the valve extends through the lower connecting disk of the guide 16, and its lower end passes through and ri idly fits in an open ng 19 formed a piston 20, which piston is adapted to move up and down in the lower compart- Piston 20 is advisably upper end of tube 18 which extends slightly into the chamber 14 is formed with a tapered valve seat 22 against which is adapted to be seated a tapered valve-23 carried at the lower end of a rod 24'. This rod extends through the top of the casing and has pivotally connected to its outer end a lever 25. This lever is fulcrumed on an'arm 26, and at a point between the fulcrum and the outer end of the lever, said lever has pivotally connected; thereto and depending therefrom a :piston,

rod 27. The lower end of this rod is connected to a piston ZS which is adapted to reciprocate in a cylinder 29. A tube 30 opens through the bottom of the cylinder, and the lower end of this tube is, in'communication with the steam outlet pipe 11. The outer end of lever 25 carries a suitable weight 31- The to or coverof casing 4 is preferably removab y connected to the upper end of the ,casing by means of the threaded connection shown, and rising upwardly from the center of the cover is a post 32. The rod 24. passes centrally through this post, and also through a-cap 33 screwed on to the upper'end ofsaid post. This post can also be made to serve as a convenient support for the fulcrum 26, said fulcrum having a lower extension projecting at right angles and in the forniof a plate 34 provided with a threaded opening turned on The plate is turned down'un'til it rests on the top or cover, and is held in placeby means of a lock. nut 35.

to the threads of, the post.

The'lower portion of casing 4 has formed therein'a vertical passage 36, the upper end of said a passage ooInmunicating; with the; steam outlet pipe-11, and the'lower end of port 37 .ex

the passage registering Witha tending throng the wall 'of-the-"casingand communicating with the .lowercompa'rt;

ment 7 of said casing-a; Projecting outwardly 1 from the wall. of the casing is a boss 38', said boss provided with afpassage 39 which, is in line with the port 37,. A.screw cap ifl-isprefw erably turned on to the outer'e'nd of. theboss",

and a needle' valve. 4'1, passes through screw cap and enters the passage 39. The outer end of this needle valve is preferably provided with a hand Wheel 42 for convenience 1n turning it. A steam gage 43 is applied to the steam outlet pipe 11, in order that the steam pressure in said pipe may be readily discernible at any time. I

In explanation of the operation of the form of device illustrated on Sheet 1 of the drawin s, it will be assumed that the parts are in t e position shown in Fig. 1, and the steam is passing through the steam inlet pipe 10 and entering the upper compartment 6, at a certain pressure, say 100 pounds. This steam, it will be evident, is free to pass through opening 8 and enter the space above the piston 20 in the lower compartment 7 and thence out through the steam outlet pipe 11. Some of the steam entering compartment 6 also passes throu h the ports 15 and into the chamber 14, and thence down tube 18 and out of the lower end of said tube into the s ace of compartment 7 below the piston 20, tlience through port 37, and up passage 36 and into pipe 11. The needle valve 39 is so adjusted as to restrict the passage 36, and thereby retard to a certain extent the flow of the steam through said passage, so that said steam becomes eflective in exerting an upward pressure against the piston 20 tending to hold the valve portion 12 in its raised position, being assisted by the pressure of the steam against the beveled edge of the valve portion 12. Some of the steam of course which flows through pipe 11 passes up pipe 30 and enters the lower end of cylinder 29. If, now, the pressure of the steam. flowing through pipe 11 becomes too great, this ex-.

cess pressure Will act against theunder side of piston 28, and overcome the resistance of the weight 31, and cause lever 25 to be turned on its pivot in a direction to push downwardly on rod 24. As rod 24 carries at its lower end the valve 23, said valve is necessarily pushed against the valve seat 22, and

' hence further flow of steam down tube 18 is shut oil. The steam in com artment 6, therefore, exerts a pressure on t e shoulders formed at the junction of the lower portion 12 of thevalve with the upper portion 13 thereof (the counteracting pressure beneath piston 20 being no longer exerted), and consequently the ta ered valve portion 12 is forced downward y to its valve seat 9, and held firmly thereagainst until the pressure of the steam in pipe 11 is reduced to the required amount. When this reduction ocours, the weight 31 overcomes the pressure beneath piston 28, and consequently said piston moves downwardly, and causes the lever 25 to be turned in a direction to raise rod 24, which necessarily unseats valve 23, and consequently once more opens up tube 18 to. the flow of steam. therethrough. The steam as sure, in conjunction with the pressure exerted on the beveled edge of the ta iered portion 12 of the valve, causes said valve to move upwardly, and hence permits the steam to flow through 0 mixing 8 and into compartment 7, and out t ough pipe 11.

Referring to the modified form of construction illustrated in Fig. 3 of Sheet 2 of the drawings, instead of providing the piston 20 in the lower-compartment 7 as in the first described form, a piston 44- prefmably provided with a suitable packing, is fitted movably in the uppercompartment 6. The valve construction of Figs. 1 and 2 is divided, that is to say, the portion of the valve corresponding to the portion .12 of Figs. 1 and 2 construction, and designated in Fig. 3 by the numeral 12, occupies the same relative position as said portion 12 of Figs. 1 and 2, and is provided with a depending guide 16. The upper portion of the valve, corresponding to the portion 13 of Figs. 1 and 2, and designated in Fig. 3 by the numeral 13, is secured to the top of piston 44, and is provided with a chamber 14 and ports 15, as in Figs. 1 and 2. It will also be noted that in this modified construction a passage 4-5 is provided in the wall of the upper compartment 7, and this passage places the space below the piston 44 in said compartment 7 in communication with the space above said piston, a port 46 leading from the upper end of passage 45 into said upper space. Projecting out from the wall of. the casing is a boss 47 provided with a passage 48 in line with port 46. A needle valve 49 extends through the cap 50 of boss 47 and into passage 45, and is adapted to restrict the flow of steam from passage 45 into the space of the compartment 6 above iston 44-. In the operation of this modified construction, if the parts are in aposition shown in Fig. 3, the steam passing through the steam inlet pipe 10 enters the space below piston 14., thence passes through opening 8 and into compartment 7, and thence into and through pipe 11. Some of the steam also enters the compartment 6 by way of the passage 45 and port 46, and then passes through ports 15 into chamber 1 1, thence down tube 18 and into compartment 7, finally flowing through pipe 11. Under normal conditions or pressures, the valve portion 12 is maintained in the position shown in Fig. 3 by pressure of the steam exerted against the under side of the piston 44 and against the beveled edge of valve portion 12. It, now, the pressure of the steam in pipe 11 becomes too great, this excess pressure will cause the piston 28 to be raised in the same manner as in the other form of construction, and through the described connections, the rod 24 will be ,20 chambered portion .13 mounted above the .35 These chambered portions, however, are con- 39 y'et-itis obviousthat-thejnventlon ma be 45 one of the compartments, and having such 65 created within the casing-is exerted in a dimoved downwardly, and the'valve 23 thereby seated. This cuts off further flow of steamdown tube 18, and the steam filling. the upperspace 6 thereby not only acts against the upper side of piston 44;, but also against the portion 13 connected to said upper side-of piston 44 causi the iston to descend on account of the act t at this down pressure is in excess of; the" upward 10 pressure of the steam exerted against the (under side of the piston 44; The piston 44 andthe ortion 13thereabo've are rigidly connect to the valve portion 12 by means of thetube 18," the upper end of said tube lafppening'into the chamber 14 of the'por- I uonls' Y I I I While in Fig. 1 vI show the valve 12 pro vided with theupwardly "extgndin chambored portion- 13, and also show in l ig. 3 a

' piston 44, yetthese chambered portions 13 and 13 are not absolutely essential to the in vention, as-it is obviousrthat the same could be omitted and successful results obtained.

' veniently used-as a means for assisting in guidi the valve stem 24; r

W in theforegoing description I have reterredi to steam asthe'actuating medium,

operated v toe uala vantage. I claim as nay-invention is 1. In valve mechanism, the combination sent a casing having two com artments with an opening or passage there etween, an inlet for the pressure fluid leading to one of the com artments, an outlet for the pressure fiui leadi from the other of said compart- '40 ments, a va ve adapted to seat itself againstthe opening or passage .and thereby close the l same, and adapted to be moved away from the end of the opening or passa e in order to open the same, a piston mova 1y fitted in area of pressure surface as' to maintain the valve; open under .a certain pressure and against. the contrary pressure exerted upon I the valvefa tube having one end connected tothe piston and adapted for the flow of the pressure fluid through the piston, and. its op- -positeendlcommun1cating with an o ening throughthe valve mechanism, a vs vs for: controlling saidlopposite end of the tube, and

mechanism for-raising and lowering the tube valve, said mechanism being in communication with the outlet pipe-and adapted to be operated by. the fluid passing through the outlet pi e in a manner to cause a movement of the tu e valve toward and .to said endof the tube and thus shut off the flow of the pressure fluid throughthe tube, when said 111d exerts a certain pressure in the outlet pipe, whereby the excess pressure thereby one of the compartments, andhavi .area of pressuresuriace as to maintainthe rection to close the valve controlling the opening between the two cor'npartments,

a 2. In valve mechanism, the combination,

of a casing having twocompartments with an oppning or passage therebetween, an inlet for t e pressure fiuid' leading to one of the com artments, an outlet for the pressure flui leading from the other of said compartments, a valve adapted to be moved away from or toward the end of the opening or-passage in order to open and close the same, a

plston movably fitted in one of the compartments and having such area of pressure 'sur-gw face as to maintain the valve 0 en under a certaln pressure and against t e contrary pressure upon the valve,; a tube havlng one end connected to the piston and adapted for i the flow of the pressure fluid through-the piston and its opplosite end communicating with an openin t rou h the valve mechanism, an incloser chain er fitted over one of the ends of the tube and provided witha port or ports for valve within said chamber and adapted for controlling'one of the ends of the tube, and

mechanism for raising and lowering the tube placing said chamber in coinsrnunicatlon with one of the compartments, 'a 'b any other des red pressure uid valve, said mechanism being in communica-Z tion with the outlet pipe, and adapted to be operated by the fluld'passing through the outlet pipe in a manner to cause a movement ofthe tube valve toward and to said end of the tube and thus shut. off the flow of the pressure fluid through the tube, when said uid exerts a certain pressure in the outlet pipe, whereby the excess pressure thereby created within the casin' 1s exerted in a direction to close the va ve controlling the o ening between the two com artments, and w en the fluid pressure in /51c outlet pipe falls below a certain point, the said tube valve is ada ted to be operated in a direction away from t e and of the tube which it controls to again-open the tube to the flow of the pressure a ent therethrough. 3..In tva ve mechanism, the cortkbimation of a casing having two com artmeiits with an opening or passage therebetween, aninletfor the pressure fluid leading to one of the com artments, an outlet for the pressure flui leadingfrom the other of said compartvalve open upder a certain' pressure and such against the contrary pressureexerted upon. the valve, a tube having one end connected to the piston and adapted for the flow of the pressure fluid through the piston, and its opposite end communicating with an opening through the valve mechanism, a 'alve adapted for controlling the last referred to end of the tube, a stem extending from said valve, a cylinder having a tube extending therefrom and communicating with the outlet pipe, a piston within said cylinder, and connections between the piston and the valve stem, whereby the tube. valve is adapted to be operated by the fluid passing through the outlet pi ye in a manner to cause movement of the tu e valve toward and to said end of from said end of the tube to again open the tube to the. flow of the pressure, agent therethrough.

4. In valve mechanism, the combination of a casing having two compartments with an opening or passage therebetween, an inlet for the pressure iiuid leading to one of the compartments, an outlet for the pressure fluid leading from the other of said compartments, a valve adapted to seat itself against the opening or passage and thereby Close the same, and adapted to be .i'noved away from the end of the openingor passage in order to open the same, a piston movably fitted inone of the compartments, and having such area of-prcssure surface as to maintain the valve open under a certain pressure as against the contrary pressure exerted upon the valve, a

tube having one end connected'to the piston and adapted for the flow of the pressure fluid through the piston, and its opposite end communicating with an opening through the valve mechanism, a valveadapted for controlling the last referred to end of the tube, a stem extending from said valve, a cylinder having a tube extending therefrom and con1- municating with the outlet pipe, a piston Within said cylinder, a piston stein extending from said piston, and. a levcrfulcrumed between its ends and connected between its ends to the said piston, and having one end connected to the tube valve stem, and its other .end carrying a weight, whereby the tube valve is adapted to be operated by the fluid passing through the outlet pipe in a manner to cause a movement of the tube valve toward and to said end of the tube and thus shut off the flow of pressure fluid through the tube, when said fluid exerts a certain pressure in the outlet pipe, whereby the excess pressure thereby created within the casing is exerted in a direction to close the valve controlling the opening between the. two compartnumts, and when the fluid pressure in the outlet pipc falls below a tim tain point, the tube valve is operated in a direction away from said end of the tube to again open the tube to the How of the pres sure agent thorethrough.

5. 1n valve mechanism, the combination of a casing having upper and lower compartments with an opening or passage between the two and also provided in the wall of the lower compartment with a lead passage, an inlet for the pressure iluid leading to the upper of the compartments, an outlet for the pressure fluid leading to the lower of said compartments, and with which outlet the lead passage communicates, a valve located in the upper cmnpartment and adapted to seat itself against the opening or passage and thereby close the same, and adapted to be moved away from the end of'tho opening or passage in order to open the same, a piston movably fitted in the lower compartment and having such area of pressure surface as to maintain the valve opcnlunder a. certain pressure as against i',helcontrary pressiire exerter upon the valve, a tube having its lower end connecte d to the piston and adapted for the llow of the pressure fluid through the piston, and its upper end extending into the valve mechanism, a valve for opening and closing the end of the tube which extends into the valve, mechanism, and mechanism for raising and lowering the tube valve, said mechanism being in communication with the outlet pipe and adapted to be operated by the lluid passing through the outlet pipe in a manner to close the tube valve and thus shut off the flow of the pressure fluid through the tube, when said fluid exerts a certain pressure in the outlet pipe, whereby the excess pressure thereby created within the. casing is exerted in a direction to close the valve controlling the opening between the two compartments, and when the lluid pressure in the outlet pipe falls below a certain point, said tube valve adapted to be operated in a direction to again open the tube to the [low of the pressure agent thcrothrough.

(S. In valve mechanism, the combination of a casing having upper and lower compartments with an opening or passage between the two, and also provided in the wall of the lower compartment with. the lead passage, a valve for restricting said lead passage, an inlet for the pressure fluid and leamng to the upper of said compartments, an outlet for the pressure iluid leading from the lower of said compartments, and with which outlet the lead passage conm'umicates, a 'alve located in the upper compartment and adapt.

amaze ed to' seat itself a ainst the opening pas- E compartments, and having such area of ag5e and thereby c ose the same; and adapteding or passage in order to open the sa 1e, a

ment and having such area of pressure surto he moved away from the end of the penface as to maintain the valve open untler a Z certain pressureas against the contrary pres sure exerted upon the valve, a tube having its lower end cr'mnected to the pistonl and adapted for the llow of the pressure fluid through the piston, and its upper end extending into the valve mechanism, avalive to open and close the upper end of the tube, and mechanism for raising and lowering; the tube valve, said mechanism'being in x-onlmunication with the outlet pipe, and adapted to be operated by the fluid passing through the outlet pipe in a manner to close the tube valve and thus shut oil the flow ofthe pressure fluid'through the tube, when said 'fluid exerts a certain pressure-in the outlet pipe whereby the excess pressure thereby ere t l piston and within the casing is exerted in ,a direction to close the valve controlling the o eningz between the two compartments, an fluid pressure in the outlet pipe falls below a certain point, said tube valve adapted th he operated in a direction to again open the tube to the flow of the pressure agent tliere through;

when; the' and t ius shut oil theflow of l the easing is exerted in e direction to close 7. In valve mechanism, the t-omhine t'ion ola easing havln; two compartments wit 1 an l opcmng'or passage then-between, and tho, top

wardly extending threaded post, an inlet for and adapted for. illt'll w oi the prreurc lluid i through. the piston, and its opposite end extending into'the' vnlve mt-clmnim, a. Val e adt ipted for opvnin; and closing one of the buds of the tube. a stem extending from said valve and through. the thrm'uled post, a lever connected at one end to the stem and carrying at ilgopposinend a weight, a fulcruni arm to which the lover is pivoted at a point l)('t\\ 4'fill the ends of the lever, the said a; having a lower extension provided with tit-threaded opening which is'turned on to the threaded post oi the casing; a cylinder having a tube extending therefrom and communicating with the outlet pipe, a iiston within the cylinder, a piston rod. extending from the ivotally connected to the lever at a point between the mods. of, said lever, rvjhprvhy the tube valw is adapted tohe 0p,- eratvd by the .lluid passing through the outlet pl )0 in a manner to close the tube-valve v l ressure fluid through the tuhe, when said uid exertsua certain pressure in the outlet pipe, whereby the excess pressure thereby created within the valve vontrolling the opening between i the two compartments, and when the fluid I I pressure in the eutletpipe falls'helowa ceror cover of Sit-Ill easing provided with mi uptain point, the tube va ve is operated in a direction to again open the tube to the flow of the pressure agent therethrough.

In testimony whereof, I aflix my signature, in presence of two, witnesses.

I! 4 AUGUST MICHAELS.

\ -Witnesses:

ANNA F. SCHMIDTBAUER, A. L. MORSELL. 

